Details

Autor(en) / Beteiligte

• Wiącek, U.
• Arbeiter, F.
• Bieńkowska, B.
• Bocian, D.
• Castellanos, J.
• Igielski, A.
• Kotuła, J.
• Królas, W.
• Kurowski, A.
• Madejowski, G.
• Prokopowicz, R.
• Ortwein, R
• Świerblewski, J

Titel

New approach to the conceptual design of STUMM: A module dedicated to the monitoring of neutron and gamma radiation fields generated in IFMIF-DONES

Ist Teil von

• Fusion engineering and design, 2021-11, Vol.172, p.112866, Article 112866

Ort / Verlag

Amsterdam: Elsevier B.V

Erscheinungsjahr

2021

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• •The STUMM is a module dedicated to the commissioning and testing phase of the IFMIF-DONES facility.•STUMM is developed to characterize the neutron flux and verify the radiation and thermal conditions adjacent to the neutron source.•Detection systems dedicated for STUMM have to be characterized by a high radiation resistance and a relatively small radiation sensitivity (to avoid detector saturation).•Dedicated detection systems have been proposed which are known to operate well and are tested in reactor conditions, such as: MFC, IC, SPND, gamma thermometers, thermocouples and rabbit systems.•Thermo-hydraulic analysis have shown that the considered cooling system based on helium flow, is able to provide appropriate thermal conditions for the proper operation (up to 250 °C) of the proposed number and arrangement of detectors.•Full elasto-plastic analysis was performed in order to check the extend of possible yielding, and it turned out to be almost negligible with the maximum plastic strain below 0.5% for considered flow directions, thus ensuring safety of the structure even for the conservative thermal assumptions. International Fusion Materials Irradiation Facility — DEMOOriented Neutron Source (IFMIF-DONES) is a planned powerful neutron source, which will generate an intense flux of neutrons (up to ∼1015n/s/cm2) with a fusion-relevant energy spectrum. It will be an accelerator source based on deuteron beam - lithium target reactions. The engineering design of IFMIF-DONES is elaborated in the frame of the Early Neutron Source work package of the EUROfusion consortium. The facility will be dedicated to the irradiation of suitable structural materials planned for the construction of future fusion reactors such as DEMO (Demonstration Fusion Power Plant). Start-up Monitoring Module (STUMM) is designed to monitor radiation and thermal conditions during the commissioning phase of IFMIF-DONES, characterize the produced neutron flux and validate neutronic modeling of the facility. The conceptual design of STUMM is prepared by a team of physicists and engineers from the Institute of Nuclear Physics Polish Academy of Sciences (IFJ PAN) and the National Centre for Nuclear Research (NCBJ), Poland. This paper presents the concept of STUMM, the proposed design of the module, and selected measuring systems.